Alias "vos e" to "vos examine"

This shortcut broke when endtrans was added, and some people have
strong finger memory.

Change-Id: Ic00fd33a28c35985464b68becfc25082eee92d0e
Reviewed-on: http://gerrit.openafs.org/10081
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Michael Meffie <mmeffie@sinenomine.net>
Reviewed-by: Derrick Brashear <shadow@your-file-system.com>